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PHYSICS 002C Lecture 05

# PHYSICS 002C Lecture 05 - PHYSICS 002C Review A wave pulse...

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PHYSICS 002C Lecture 05 April 08, 2009 Serway and Jewett Chapter 13 – Mechanical Waves Review : A wave pulse in a string – see page 2 discussion. Review Q: A wave pulse in a string has a transverse displacement given by } ) 2 3 ( 5 exp{ ) , ( 2 t x A t x y - - = , where x is the distance along the string in meters and t is in seconds. The wave velocity is a) 0.66 m/s; b) 1.5 m/s; c) 0.15 m/s; d) 0.25 m/s; e) 0.32 m/s. Review Q: The above wave pulse is traveling in the direction of a) + x ; b) – x ; c) + y ; d) – y ; e) t . Review - Chap 13.1 - Propagation of a pulse or wave occurs in relatively uniform continuous media when a local displacement is iteratively shifted to a neighboring part of the material. While individual parts are displaced only a small distance, the pulse or wave can be transmitted great distances. Energy and therefore information are thus transmitted with little transfer of mass. With e-mail you can send the contents of a book via the optical fiber network without sending the book itself.

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PHYSICS 002C Lecture 05 - PHYSICS 002C Review A wave pulse...

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